SignalServiceGroup groupInfo = message.getGroupInfo().get();
System.out.println("Group info:");
System.out.println(" Id: " + Base64.encodeBytes(groupInfo.getGroupId()));
SignalServiceGroup groupInfo = message.getGroupInfo().get();
System.out.println("Group info:");
System.out.println(" Id: " + Base64.encodeBytes(groupInfo.getGroupId()));